The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 03, 2012

Filed:

Sep. 30, 2008
Applicants:

Tsutomu Ishii, Kanagawa, JP;

Yasunori Saito, Kanagawa, JP;

Shigehiko Sasaki, Kanagawa, JP;

Masahiro Sato, Kanagawa, JP;

Akira Ichiboshi, Kanagawa, JP;

Kyotaro Tomoda, Kanagawa, JP;

Inventors:

Tsutomu Ishii, Kanagawa, JP;

Yasunori Saito, Kanagawa, JP;

Shigehiko Sasaki, Kanagawa, JP;

Masahiro Sato, Kanagawa, JP;

Akira Ichiboshi, Kanagawa, JP;

Kyotaro Tomoda, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/34 (2006.01);
U.S. Cl.
CPC ...
Abstract

There is provided an optical writing image forming device including: a positioning section positioning an optically written display medium including a pair of electrodes with at least one of which formed by a group of plural sub-electrodes, a display layer, and a photoconductor layer; a display layer initialization section applying an initialization voltage between the pair of electrodes and irradiating initialization light over the entire region of the photoconductor layer; an optical writing section; a head position identification section; and a writing information erasing section, based on information identified by the head position identification section, erasing in a time-series writing information in the display layer corresponding to the group of the plural sub-electrodes by selecting the sub-electrodes in sequence so that an image writing head does not obstruct light emitted from the initialization light source while the image writing head light source is being returned to a standby position.


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